import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
@Override
public ContextualAuthenticationPolicy<ServiceContext> createPolicy(final ServiceContext context) {
    return new ContextualAuthenticationPolicy<ServiceContext>() {

        @Override
        public ServiceContext getContext() {
            return context;
        }

        @Override
        public boolean isSatisfiedBy(final Authentication authentication) {
            for (final String required : context.getRegisteredService().getRequiredHandlers()) {
                if (!authentication.getSuccesses().containsKey(required)) {
                    return false;
                }
            }
            return true;
        }
    };
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
/**
 * Gets the authentication satisfied by policy.
 *
 * @param ticket the ticket
 * @param context the context
 * @return the authentication satisfied by policy
 * @throws AbstractTicketException the ticket exception
 */
protected final Authentication getAuthenticationSatisfiedByPolicy(
        final TicketGrantingTicket ticket, final ServiceContext context) throws AbstractTicketException {

    final ContextualAuthenticationPolicy<ServiceContext> policy =
            serviceContextAuthenticationPolicyFactory.createPolicy(context);
    if (policy.isSatisfiedBy(ticket.getAuthentication())) {
        return ticket.getAuthentication();
    }
    for (final Authentication auth : ticket.getSupplementalAuthentications()) {
        if (policy.isSatisfiedBy(auth)) {
            return auth;
        }
    }
    throw new UnsatisfiedAuthenticationPolicyException(policy);
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
/**
 * Gets the authentication satisfied by policy.
 *
 * @param ticket the ticket
 * @param context the context
 * @return the authentication satisfied by policy
 * @throws org.jasig.cas.ticket.TicketException the ticket exception
 */
private Authentication getAuthenticationSatisfiedByPolicy(
        final TicketGrantingTicket ticket, final ServiceContext context) throws TicketException {

    final ContextualAuthenticationPolicy<ServiceContext> policy =
            serviceContextAuthenticationPolicyFactory.createPolicy(context);
    if (policy.isSatisfiedBy(ticket.getAuthentication())) {
        return ticket.getAuthentication();
    }
    for (final Authentication auth : ticket.getSupplementalAuthentications()) {
        if (policy.isSatisfiedBy(auth)) {
            return auth;
        }
    }
    throw new UnsatisfiedAuthenticationPolicyException(policy);
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
/**
 * Gets the authentication satisfied by policy.
 *
 * @param ticket the ticket
 * @param context the context
 * @return the authentication satisfied by policy
 * @throws TicketException the ticket exception
 */
private Authentication getAuthenticationSatisfiedByPolicy(
        final TicketGrantingTicket ticket, final ServiceContext context) throws TicketException {

    final ContextualAuthenticationPolicy<ServiceContext> policy =
            serviceContextAuthenticationPolicyFactory.createPolicy(context);
    if (policy.isSatisfiedBy(ticket.getAuthentication())) {
        return ticket.getAuthentication();
    }
    for (final Authentication auth : ticket.getSupplementalAuthentications()) {
        if (policy.isSatisfiedBy(auth)) {
            return auth;
        }
    }
    throw new UnsatisfiedAuthenticationPolicyException(policy);
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
@Override
public ContextualAuthenticationPolicy<ServiceContext> createPolicy(final ServiceContext context) {
    return new ContextualAuthenticationPolicy<ServiceContext>() {

        @Override
        public ServiceContext getContext() {
            return context;
        }

        @Override
        public boolean isSatisfiedBy(final Authentication authentication) {
            return true;
        }
    };
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
private Authentication getAuthenticationSatisfiedByPolicy(
        final TicketGrantingTicket ticket, final ServiceContext context) throws TicketException {

    final ContextualAuthenticationPolicy<ServiceContext> policy =
            serviceContextAuthenticationPolicyFactory.createPolicy(context);
    if (policy.isSatisfiedBy(ticket.getAuthentication())) {
        return ticket.getAuthentication();
    }
    for (final Authentication auth : ticket.getSupplementalAuthentications()) {
        if (policy.isSatisfiedBy(auth)) {
            return auth;
        }
    }
    throw new UnsatisfiedAuthenticationPolicyException(policy);
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
public final void setServiceContextAuthenticationPolicyFactory(final ContextualAuthenticationPolicyFactory<ServiceContext> policy) {
    this.serviceContextAuthenticationPolicyFactory = policy;
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
@Audit(
    action="SERVICE_TICKET",
    actionResolverName="GRANT_SERVICE_TICKET_RESOLVER",
    resourceResolverName="GRANT_SERVICE_TICKET_RESOURCE_RESOLVER")
@Timed(name="GRANT_SERVICE_TICKET_TIMER")
@Metered(name="GRANT_SERVICE_TICKET_METER")
@Counted(name="GRANT_SERVICE_TICKET_COUNTER", monotonic=true)
@Override
public ServiceTicket grantServiceTicket(
        final String ticketGrantingTicketId,
        final Service service, final AuthenticationContext context)
        throws AuthenticationException, AbstractTicketException {

    final TicketGrantingTicket ticketGrantingTicket = getTicket(ticketGrantingTicketId, TicketGrantingTicket.class);
    final RegisteredService registeredService = this.servicesManager.findServiceBy(service);

    verifyRegisteredServiceProperties(registeredService, service);
    final Authentication currentAuthentication = evaluatePossibilityOfMixedPrincipals(context, ticketGrantingTicket);
    
    if (ticketGrantingTicket.getCountOfUses() > 0 && !registeredService.getAccessStrategy().isServiceAccessAllowedForSso()) {
        logger.warn("Service [{}] is not allowed to use SSO.", service.getId());
        throw new UnauthorizedSsoServiceException();
    }

    evaluateProxiedServiceIfNeeded(service, ticketGrantingTicket, registeredService);

    // Perform security policy check by getting the authentication that satisfies the configured policy
    // This throws if no suitable policy is found
    getAuthenticationSatisfiedByPolicy(ticketGrantingTicket.getRoot(), new ServiceContext(service, registeredService));

    final List<Authentication> authentications = ticketGrantingTicket.getChainedAuthentications();
    final Principal principal = authentications.get(authentications.size() - 1).getPrincipal();

    final RegisteredServiceAttributeReleasePolicy releasePolicy = registeredService.getAttributeReleasePolicy();
    final Map<String, Object> principalAttrs;
    if (releasePolicy != null) {
        principalAttrs = releasePolicy.getAttributes(principal);
    } else {
        principalAttrs = new HashMap<>();
    }

    if (!registeredService.getAccessStrategy().doPrincipalAttributesAllowServiceAccess(principal.getId(), principalAttrs)) {
        logger.warn("Cannot grant service ticket because Service [{}] is not authorized for use by [{}].",
                service.getId(), principal);
        throw new UnauthorizedServiceForPrincipalException();
    }

    final ServiceTicketFactory factory = this.ticketFactory.get(ServiceTicket.class);
    final ServiceTicket serviceTicket = factory.create(ticketGrantingTicket, service, currentAuthentication != null);
    this.ticketRegistry.addTicket(serviceTicket);

    logger.info("Granted ticket [{}] for service [{}] and principal [{}]",
            serviceTicket.getId(), service.getId(), principal.getId());

    doPublishEvent(new CasServiceTicketGrantedEvent(this, ticketGrantingTicket, serviceTicket));

    return serviceTicket;
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
@Audit(
        action="PROXY_TICKET",
        actionResolverName="GRANT_PROXY_TICKET_RESOLVER",
        resourceResolverName="GRANT_PROXY_TICKET_RESOURCE_RESOLVER")
@Timed(name="GRANT_PROXY_TICKET_TIMER")
@Metered(name="GRANT_PROXY_TICKET_METER")
@Counted(name="GRANT_PROXY_TICKET_COUNTER", monotonic=true)
@Override
public ProxyTicket grantProxyTicket(final String proxyGrantingTicket, final Service service)
        throws AbstractTicketException {

    final ProxyGrantingTicket proxyGrantingTicketObject = getTicket(proxyGrantingTicket, ProxyGrantingTicket.class);
    final RegisteredService registeredService = this.servicesManager.findServiceBy(service);

    verifyRegisteredServiceProperties(registeredService, service);

    if (!registeredService.getAccessStrategy().isServiceAccessAllowedForSso()) {
        logger.warn("Service [{}] is not allowed to use SSO.", service.getId());
        throw new UnauthorizedSsoServiceException();
    }

    evaluateProxiedServiceIfNeeded(service, proxyGrantingTicketObject, registeredService);

    // Perform security policy check by getting the authentication that satisfies the configured policy
    // This throws if no suitable policy is found
    getAuthenticationSatisfiedByPolicy(proxyGrantingTicketObject.getRoot(), new ServiceContext(service, registeredService));

    final List<Authentication> authentications = proxyGrantingTicketObject.getChainedAuthentications();
    final Principal principal = authentications.get(authentications.size() - 1).getPrincipal();

    final RegisteredServiceAttributeReleasePolicy releasePolicy = registeredService.getAttributeReleasePolicy();
    final Map<String, Object> principalAttrs;
    if (releasePolicy != null) {
        principalAttrs = releasePolicy.getAttributes(principal);
    } else {
        principalAttrs = new HashMap<>();
    }

    if (!registeredService.getAccessStrategy().doPrincipalAttributesAllowServiceAccess(principal.getId(), principalAttrs)) {
        logger.warn("Cannot grant proxy ticket because Service [{}] is not authorized for use by [{}].",
                service.getId(), principal);
        throw new UnauthorizedServiceForPrincipalException();
    }

    final ProxyTicketFactory factory = this.ticketFactory.get(ProxyTicket.class);
    final ProxyTicket proxyTicket = factory.create(proxyGrantingTicketObject, service);
    this.ticketRegistry.addTicket(proxyTicket);

    logger.info("Granted ticket [{}] for service [{}] for user [{}]",
            proxyTicket.getId(), service.getId(), principal.getId());

    doPublishEvent(new CasProxyTicketGrantedEvent(this, proxyGrantingTicketObject, proxyTicket));
    return proxyTicket;
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
@Audit(
    action="SERVICE_TICKET_VALIDATE",
    actionResolverName="VALIDATE_SERVICE_TICKET_RESOLVER",
    resourceResolverName="VALIDATE_SERVICE_TICKET_RESOURCE_RESOLVER")
@Timed(name="VALIDATE_SERVICE_TICKET_TIMER")
@Metered(name="VALIDATE_SERVICE_TICKET_METER")
@Counted(name="VALIDATE_SERVICE_TICKET_COUNTER", monotonic=true)
@Override
public Assertion validateServiceTicket(final String serviceTicketId, final Service service) throws AbstractTicketException {
    final RegisteredService registeredService = this.servicesManager.findServiceBy(service);
    verifyRegisteredServiceProperties(registeredService, service);

    final ServiceTicket serviceTicket =  this.ticketRegistry.getTicket(serviceTicketId, ServiceTicket.class);

    if (serviceTicket == null) {
        logger.info("Service ticket [{}] does not exist.", serviceTicketId);
        throw new InvalidTicketException(serviceTicketId);
    }

    try {
        synchronized (serviceTicket) {
            if (serviceTicket.isExpired()) {
                logger.info("ServiceTicket [{}] has expired.", serviceTicketId);
                throw new InvalidTicketException(serviceTicketId);
            }

            if (!serviceTicket.isValidFor(service)) {
                logger.error("Service ticket [{}] with service [{}] does not match supplied service [{}]",
                        serviceTicketId, serviceTicket.getService().getId(), service);
                throw new UnrecognizableServiceForServiceTicketValidationException(serviceTicket.getService());
            }
        }

        final TicketGrantingTicket root = serviceTicket.getGrantingTicket().getRoot();
        final Authentication authentication = getAuthenticationSatisfiedByPolicy(
                root, new ServiceContext(serviceTicket.getService(), registeredService));
        final Principal principal = authentication.getPrincipal();

        final RegisteredServiceAttributeReleasePolicy attributePolicy = registeredService.getAttributeReleasePolicy();
        logger.debug("Attribute policy [{}] is associated with service [{}]", attributePolicy, registeredService);
        
        @SuppressWarnings("unchecked")
        final Map<String, Object> attributesToRelease = attributePolicy != null
                ? attributePolicy.getAttributes(principal) : Collections.EMPTY_MAP;
        
        final String principalId = registeredService.getUsernameAttributeProvider().resolveUsername(principal, service);
        final Principal modifiedPrincipal = this.principalFactory.createPrincipal(principalId, attributesToRelease);
        final AuthenticationBuilder builder = DefaultAuthenticationBuilder.newInstance(authentication);
        builder.setPrincipal(modifiedPrincipal);

        final Assertion assertion = new ImmutableAssertion(
                builder.build(),
                serviceTicket.getGrantingTicket().getChainedAuthentications(),
                serviceTicket.getService(),
                serviceTicket.isFromNewLogin());

        doPublishEvent(new CasServiceTicketValidatedEvent(this, serviceTicket, assertion));

        return assertion;

    } finally {
        if (serviceTicket.isExpired()) {
            this.ticketRegistry.deleteTicket(serviceTicketId);
        }
    }
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
@Audit(
    action="SERVICE_TICKET_VALIDATE",
    actionResolverName="VALIDATE_SERVICE_TICKET_RESOLVER",
    resourceResolverName="VALIDATE_SERVICE_TICKET_RESOURCE_RESOLVER")
@Timed(name="VALIDATE_SERVICE_TICKET_TIMER")
@Metered(name="VALIDATE_SERVICE_TICKET_METER")
@Counted(name="VALIDATE_SERVICE_TICKET_COUNTER", monotonic=true)
@Override
public Assertion validateServiceTicket(final String serviceTicketId, final Service service) throws TicketException {
    final RegisteredService registeredService = this.servicesManager.findServiceBy(service);
    verifyRegisteredServiceProperties(registeredService, service);

    final ServiceTicket serviceTicket =  this.serviceTicketRegistry.getTicket(serviceTicketId, ServiceTicket.class);

    if (serviceTicket == null) {
        logger.info("Service ticket [{}] does not exist.", serviceTicketId);
        throw new InvalidTicketException(serviceTicketId);
    }

    try {
        synchronized (serviceTicket) {
            if (serviceTicket.isExpired()) {
                logger.info("ServiceTicket [{}] has expired.", serviceTicketId);
                throw new InvalidTicketException(serviceTicketId);
            }

            if (!serviceTicket.isValidFor(service)) {
                logger.error("Service ticket [{}] with service [{}] does not match supplied service [{}]",
                        serviceTicketId, serviceTicket.getService().getId(), service);
                throw new UnrecognizableServiceForServiceTicketValidationException(serviceTicket.getService());
            }
        }

        final TicketGrantingTicket root = serviceTicket.getGrantingTicket().getRoot();
        final Authentication authentication = getAuthenticationSatisfiedByPolicy(
                root, new ServiceContext(serviceTicket.getService(), registeredService));
        final Principal principal = authentication.getPrincipal();

        final AttributeReleasePolicy attributePolicy = registeredService.getAttributeReleasePolicy();
        logger.debug("Attribute policy [{}] is associated with service [{}]", attributePolicy, registeredService);
        
        @SuppressWarnings("unchecked")
        final Map<String, Object> attributesToRelease = attributePolicy != null
                ? attributePolicy.getAttributes(principal) : Collections.EMPTY_MAP;
        
        final String principalId = registeredService.getUsernameAttributeProvider().resolveUsername(principal, service);
        final Principal modifiedPrincipal = this.principalFactory.createPrincipal(principalId, attributesToRelease);
        final AuthenticationBuilder builder = DefaultAuthenticationBuilder.newInstance(authentication);
        builder.setPrincipal(modifiedPrincipal);

        return new ImmutableAssertion(
                builder.build(),
                serviceTicket.getGrantingTicket().getChainedAuthentications(),
                serviceTicket.getService(),
                serviceTicket.isFromNewLogin());
    } finally {
        if (serviceTicket.isExpired()) {
            this.serviceTicketRegistry.deleteTicket(serviceTicketId);
        }
    }
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
public void setServiceContextAuthenticationPolicyFactory(final ContextualAuthenticationPolicyFactory<ServiceContext> policy) {
    this.serviceContextAuthenticationPolicyFactory = policy;
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
/**
 * @throws IllegalArgumentException if the ServiceTicketId or the Service
 * are null.
 */
@Audit(
    action="SERVICE_TICKET_VALIDATE",
    actionResolverName="VALIDATE_SERVICE_TICKET_RESOLVER",
    resourceResolverName="VALIDATE_SERVICE_TICKET_RESOURCE_RESOLVER")
@Profiled(tag="VALIDATE_SERVICE_TICKET", logFailuresSeparately = false)
@Transactional(readOnly = false)
public Assertion validateServiceTicket(final String serviceTicketId, final Service service) throws TicketException {
    Assert.notNull(serviceTicketId, "serviceTicketId cannot be null");
    Assert.notNull(service, "service cannot be null");
 
    final ServiceTicket serviceTicket =  this.serviceTicketRegistry.getTicket(serviceTicketId, ServiceTicket.class);

    if (serviceTicket == null) {
        logger.info("ServiceTicket [{}] does not exist.", serviceTicketId);
        throw new InvalidTicketException(serviceTicketId);
    }

    final RegisteredService registeredService = this.servicesManager.findServiceBy(service);

    verifyRegisteredServiceProperties(registeredService, serviceTicket.getService());
    
    try {
        synchronized (serviceTicket) {
            if (serviceTicket.isExpired()) {
                logger.info("ServiceTicket [{}] has expired.", serviceTicketId);
                throw new InvalidTicketException(serviceTicketId);
            }

            if (!serviceTicket.isValidFor(service)) {
                logger.error("ServiceTicket [{}] with service [{}] does not match supplied service [{}]",
                        serviceTicketId, serviceTicket.getService().getId(), service);
                throw new TicketValidationException(serviceTicket.getService());
            }
        }

        final TicketGrantingTicket root = serviceTicket.getGrantingTicket().getRoot();
        final Authentication authentication = getAuthenticationSatisfiedByPolicy(
                root, new ServiceContext(serviceTicket.getService(), registeredService));
        final Principal principal = authentication.getPrincipal();

        Map<String, Object> attributesToRelease = this.defaultAttributeFilter.filter(principal.getId(),
                principal.getAttributes(), registeredService);
        if (registeredService.getAttributeFilter() != null) {
            attributesToRelease = registeredService.getAttributeFilter().filter(principal.getId(),
                    attributesToRelease, registeredService);
        }

        final String principalId = determinePrincipalIdForRegisteredService(principal, registeredService, serviceTicket);
        final Principal modifiedPrincipal = new SimplePrincipal(principalId, attributesToRelease);
        final AuthenticationBuilder builder = AuthenticationBuilder.newInstance(authentication);
        builder.setPrincipal(modifiedPrincipal);

        return new ImmutableAssertion(
                builder.build(),
                serviceTicket.getGrantingTicket().getChainedAuthentications(),
                serviceTicket.getService(),
                serviceTicket.isFromNewLogin());
    } finally {
        if (serviceTicket.isExpired()) {
            this.serviceTicketRegistry.deleteTicket(serviceTicketId);
        }
    }
}
 

import org.jasig.cas.services.ServiceContext; //导入依赖的package包/类
/**
 * Note:
 * Synchronization on ticket object in case of cache based registry doesn't serialize
 * access to critical section. The reason is that cache pulls serialized data and
 * builds new object, most likely for each pull. Is this synchronization needed here?
 */
@Audit(
    action="SERVICE_TICKET_VALIDATE",
    actionResolverName="VALIDATE_SERVICE_TICKET_RESOLVER",
    resourceResolverName="VALIDATE_SERVICE_TICKET_RESOURCE_RESOLVER")
@Timed(name="VALIDATE_SERVICE_TICKET_TIMER")
@Metered(name="VALIDATE_SERVICE_TICKET_METER")
@Counted(name="VALIDATE_SERVICE_TICKET_COUNTER", monotonic=true)
@Override
public Assertion validateServiceTicket(final String serviceTicketId, final Service service) throws TicketException {
    final RegisteredService registeredService = this.servicesManager.findServiceBy(service);
    verifyRegisteredServiceProperties(registeredService, service);

    final ServiceTicket serviceTicket =  this.ticketRegistry.getTicket(serviceTicketId, ServiceTicket.class);

    if (serviceTicket == null) {
        logger.info("Service ticket [{}] does not exist.", serviceTicketId);
        throw new InvalidTicketException(serviceTicketId);
    }

    try {
        synchronized (serviceTicket) {
            if (serviceTicket.isExpired()) {
                logger.info("ServiceTicket [{}] has expired.", serviceTicketId);
                throw new InvalidTicketException(serviceTicketId);
            }

            if (!serviceTicket.isValidFor(service)) {
                logger.error("Service ticket [{}] with service [{}] does not match supplied service [{}]",
                        serviceTicketId, serviceTicket.getService().getId(), service);
                throw new UnrecognizableServiceForServiceTicketValidationException(serviceTicket.getService());
            }
        }

        final TicketGrantingTicket root = serviceTicket.getGrantingTicket().getRoot();
        final Authentication authentication = getAuthenticationSatisfiedByPolicy(
                root, new ServiceContext(serviceTicket.getService(), registeredService));
        final Principal principal = authentication.getPrincipal();

        final AttributeReleasePolicy attributePolicy = registeredService.getAttributeReleasePolicy();
        logger.debug("Attribute policy [{}] is associated with service [{}]", attributePolicy, registeredService);
        
        @SuppressWarnings("unchecked")
        final Map<String, Object> attributesToRelease = attributePolicy != null
                ? attributePolicy.getAttributes(principal) : Collections.EMPTY_MAP;
        
        final String principalId = registeredService.getUsernameAttributeProvider().resolveUsername(principal, service);
        final Principal modifiedPrincipal = this.principalFactory.createPrincipal(principalId, attributesToRelease);
        final AuthenticationBuilder builder = DefaultAuthenticationBuilder.newInstance(authentication);
        builder.setPrincipal(modifiedPrincipal);

        return new ImmutableAssertion(
                builder.build(),
                serviceTicket.getGrantingTicket().getChainedAuthentications(),
                serviceTicket.getService(),
                serviceTicket.isFromNewLogin());
    } finally {
        if (serviceTicket.isExpired()) {
            this.ticketRegistry.deleteTicket(serviceTicketId);
        }
    }
}